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Cross-sector group led by University of Aberdeen looks to tackle a type of water mould that can harm fish eggs and young fish

A project to address one of the key challenges faced by Scotland's salmon farmers is underway, led by an expert from the University of Aberdeen.

Saprolegnia – a type of water mould that can harm fish eggs and juvenile fish – is thought to significantly reduce stocks at Scotland’s salmon farms every year.

Now, a multi-partner cross-sector collaboration is seeking to minimise those losses and boost the availability of farmed Scottish salmon by compiling a ‘big data’ resource that will increase understanding of Saprolegnia and its causative factors.

The project, ‘Risk factors for escalating saprolegniosis outbreaks in salmon farms’ (RIFE-SOS), is supported by grant funding from the Scottish Aquaculture Innovation Centre (SAIC) and UK research council BBSRC and led by acclaimed scientist Professor Pieter van West, Director of the International Centre for Aquaculture Research and Development at the University of Aberdeen.

It brings together the knowledge of eight aquaculture companies with the expertise of leading academics at the Universities of Aberdeen and Glasgow to develop an information toolkit on how to pre-empt and control occurrence of the disease.

The greater our understanding of this, the more we can do to improve fish health and welfare, and increase production volumes."
Professor Pieter van West

Professor van West said: “We know that several factors can make fish more susceptible to Saprolegnia and that separate farms subject to similar conditions can be affected to very different degrees. Therefore, we would like to explore what are the main risk factors and which of those factors play a synergistic role in suppressing fish immunity to Saprolegnia. The greater our understanding of this, the more we can do to improve fish health and welfare, and increase production volumes.”

The £1.1m project is supported by £340,285grant funding fromthe BBSRC Link initiative, with the remaining £732,628 of the project cost coming from industry and SAIC. The RSPCA and Scottish Salmon Producers’ Organisation are also involved, providing support and guidance to partners.

SAIC CEO Heather Jones added: “The sheer number and range of partners involved in this first-of-its-kind project underpins the scale of the issue – and the size of the opportunity both for the sector and global food security if we can put more effective controls in place. The world population continues to grow, so too does demand for food, and aquaculture has a key role to play in helping meet that rising demand.”

In addition to establishing a best practice approach to the management of Saprolegnia, it’s thought the 36-month project could potentially help predict the risk factors associated with other issues that can affect fish, further improving health and welfare.